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On 29/04/11 12:50, Holger Parplies wrote:
> I'm sure that's a point where we'll all disagree with each other :-).

No doubt :)

> Personally, I wouldn't use a common set of disks for normal backup operation
> and offsite backups. BackupPC puts considerable wear on its pool disks. At
> some point in time, you'll either have failing disks or proactively want to
> replace disks before they start failing. Are you sure you want to think about
> failing pool disks and failing offsite backup disks at the same time (i.e.
> correlated)? I assume, failing pool disks are one of the things you want to
> protect against with offsite backups. So why use backup media that are likely
> to begin failing just when you'll need them?

I strongly suggest everyone read the google paper on hard disk drive
failures, and methods for predicting them...

One of the issues they noted was that age wasn't a factor after the
first few months, and before about 5 years or more (I forget the exact
numbers...)

Also, usage wasn't a great factor, though all their drives are powered
on all the time :)

I've read parts of it a few times, and think most people here would find
it interesting reading if you have the time... It touches on temperature
of drives as well.

Regards,
Adam

- -- 
Adam Goryachev
Website Managers
www.websitemanagers.com.au
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